body{
  margin: 0px;
}

div{
  background-color: #0AE;/*Bleu*/
}
p{
  background-color: #0EA;/*Vert*/
}
.bloc-centre{
  width: 80%;
  margin: 0 auto;
}

.texte-centre{
  text-align: center;
}
.conteneur{
  width: 80%;
}